/// <summary>
/// Creates the PowerPoint Application Class and sets the default web options
/// </summary>
private void CreatePowerPointAppClass()
{
if (m_pptApp == null)
{
m_pptApp = new Application();
}
m_pptApp.DefaultWebOptions.Encoding = Office.MsoEncoding.msoEncodingUTF8;
m_pptApp.DefaultWebOptions.AlwaysSaveInDefaultEncoding = MS_TRUE;
}
/// <summary>
/// 转换PPT到PDF
/// </summary>
/// <param name="wpsFilename">原始文件</param>
/// <param name="pdfFilename">转换后pdf文件</param>
private void ConvertPptToPdf()
{
PrintLog("Start Convert PPT Office file To PDF");
PowerPoint.Application pps = new PowerPoint.Application();
Presentation curPPTFile = null;
try
{
// Is NULL
if (m_strOfficeName == null || m_strPDFName == null)
{
m_nConvertStatus = EErrorType.OTP_FILENAME_EMPTY;
}
else
{
// To PDF
//忽略警告提示 此处无法设置，原因不清楚！
//pps.Visible = PowerPoint.MsoTriState.msoFalse;
pps.DisplayAlerts = PowerPoint.PpAlertLevel.ppAlertsNone;
curPPTFile = pps.Presentations.Open(m_strOfficeName, MsoTriState.msoTrue, MsoTriState.msoFalse, MsoTriState.msoFalse);
m_nTotalPage = curPPTFile.Slides.Count;
PrintLog("ConvertStatus:" + (int)ConvertStatus.START + " " + 0 + " " + m_nTotalPage);
for (int i = 1; i <= m_nTotalPage; i++)
{
Slide slide = curPPTFile.Slides[i];
//int nWidth = (int)(slide.Background.Width * (int)m_dQuality);
//int nHeight = (int)(slide.Background.Height * (int)m_dQuality);
string strJpgName = m_strOutDir + "\\" + Path.GetFileNameWithoutExtension(m_strOfficeName) + "_" + m_nTotalPage + "_" + i + ".jpg";
slide.Export(strJpgName, "jpeg" /*, nWidth, nHeight*/);
PrintLog("ConvertStatus:" + (int)ConvertStatus.ING + " " + (i).ToString() + " " + m_nTotalPage);
}
QuitWPP(ref pps, ref curPPTFile);
// To JPG
//ConvertPDF2ImageO2S(m_strPDFName);
}
}
catch (Exception ex)
{
PrintLog(ex.Message.ToString());
m_nConvertStatus = EErrorType.OTP_EXCEPTION_FAILED;
}
finally
{
QuitWPP(ref pps, ref curPPTFile);
}
}
/// <summary>
/// PPT转PDF
/// </summary>
/// <param name="wpsFilename">文件名</param>
/// <param name="pdfFilename"></param>
public void PptToPdf(string wpsFilename, string pdfFilename = null)
{
PowerPoint.Application pps = new PowerPoint.Application();
try
{
if (wpsFilename == null)
{
throw new ArgumentNullException("wpsFilename");
}
//保存路径为空时，保存在原始文件目录
if (pdfFilename == null)
{
pdfFilename = Path.ChangeExtension(wpsFilename, "pdf");
}
//忽略警告提示 此处无法设置，原因不清楚！
//pps.DisplayAlerts = WPP.WpAlertLevel.wpAlertsAll;
//应用程序不可见
// pps.
// pps.Visible=MsoTriState.
pps.Visible = MsoTriState.msoTrue;
//pps.DisplayAlerts = PpAlertLevel.ppAlertsNone;
pps.Presentations.Open(wpsFilename);
pps.ActivePresentation.ExportAsFixedFormat(pdfFilename, PpFixedFormatType.ppFixedFormatTypePDF);
pps.ActivePresentation.Close();
}
catch (Exception ex)
{
}
finally
{
//无论是否成功，都退出
if (pps != null)
{
pps.Quit();
//强制关闭所有wpp进程
System.Diagnostics.Process[] process = System.Diagnostics.Process.GetProcessesByName("POWERPNT");
foreach (System.Diagnostics.Process prtemp in process)
{
prtemp.Kill();
}
}
}
}
/// <summary>
/// Quits the PowerPoint Application.
/// </summary>
public void QuitPowerPoint()
{
if (m_pptApp == null)
{
return;
}
// closing the presentation would not close the application, so we
// close it explicitly if there are no more presentations. Since
// only one instance of PowerPoint can be running at a time, we need
// to make sure that there are no more presentations before quiting the
// application
if (m_pptApp.Presentations != null && m_pptApp.Presentations.Count == 0)
{
try { m_pptApp.Quit(); }
catch (Exception e)
{
Logger.LogError("Failed to quit powerpoint", e);
}
}
m_pptApp = null;
}
private void QuitWPP(ref PowerPoint.Application pps, ref Presentation curPPTFile)
{
try
{
if (curPPTFile != null)
{
//curPPTFile.Save();
curPPTFile.Close();
}
//无论是否成功，都退出
if (pps != null)
{
PrintLog("Convert PPT file To PDF end");
if (pps.Presentations.Count == 0)
{
pps.Quit();
int calcID = 0, calcTD = 0;
calcTD = GetWindowThreadProcessId((IntPtr)pps.HWND, out calcID);
System.Diagnostics.Process process = System.Diagnostics.Process.GetProcessById(calcID);
if (process != null)
{
process.Kill();
}
}
}
}
catch (Exception ex)
{
PrintLog(ex.Message.ToString());
//m_nConvertStatus = EErrorType.OTP_EXCEPTION_FAILED;
}
finally
{
//pps = null;
curPPTFile = null;
}
}
/// <summary>
/// Convert Presentation Document.
/// </summary>
/// <param name="strPath"></param>
/// <param name="savePath"></param>
/// <param name="msg"></param>
/// <returns></returns>
private bool ConvertPresentationDocument(string strPath, string savePath,ref DocumentSharing msg)
{
try
{
PowerPoint.Application ppApp;
PowerPoint.PpSaveAsFileType format;
format= PowerPoint.PpSaveAsFileType.ppSaveAsJPG;//.ppSaveAsJPG;
try
{
ppApp= new PowerPoint.Application();
ppApp.Presentations.Open(strPath,Microsoft.Office.Core.MsoTriState.msoCTrue,Microsoft.Office.Core.MsoTriState.msoCTrue,Microsoft.Office.Core.MsoTriState.msoFalse);
}
catch(Exception ee)
{
Console.Write("Unable to convert PowerPoint document " + ee.Message);
return false;
}
try
{
ppApp.Presentations.Item(1).SaveAs(savePath,format,Microsoft.Office.Core.MsoTriState.msoCTrue);
ppApp.Presentations.Item(1).Close();
//ConvertBMPToJPG(savePath);
ppApp.Quit();
System.Threading.Thread.Sleep(500);
string[] files = Directory.GetFiles(savePath,"*.jpg");
if(files != null)
{
msg.TotalPages = files.Length;
//Console.WriteLine("No of Files in presentation ::::"+files.Length.ToString());
}
else
{
msg.CurrentPage = 1;
msg.TotalPages =1;
}
//Thread.Sleep(500);
return true;
}
catch(Exception ee)
{
string errorText = "Unable to save specified Presentation. Access is denied. "+ ee.Message;
Console.Write("Unable to convert Powerpoint Document " + errorText);
return false;
}
}
catch(Exception ee)
{
Console.Write("Unable to Convert PowerPoint Document. " + ee.Message);
return false;
}
}